Source/core/svg/SVGFEImageElement.h

/*
 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef SVGFEImageElement_h
#define SVGFEImageElement_h

#include "core/SVGNames.h"
#include "core/fetch/ImageResource.h"
#include "core/fetch/ImageResourceClient.h"
#include "core/fetch/ResourcePtr.h"
#include "core/svg/SVGAnimatedPreserveAspectRatio.h"
#include "core/svg/SVGFilterPrimitiveStandardAttributes.h"
#include "core/svg/SVGURIReference.h"
#include "platform/heap/Handle.h"

namespace blink {

class SVGFEImageElement final : public SVGFilterPrimitiveStandardAttributes,
                                public SVGURIReference,
                                public ImageResourceClient {
    DEFINE_WRAPPERTYPEINFO();
    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SVGFEImageElement);
public:
    DECLARE_NODE_FACTORY(SVGFEImageElement);

    bool currentFrameHasSingleSecurityOrigin() const;

    ~SVGFEImageElement() override;
    SVGAnimatedPreserveAspectRatio* preserveAspectRatio() { return m_preserveAspectRatio.get(); }

    // Promptly remove as a ImageResource client.
    EAGERLY_FINALIZE();
    DECLARE_VIRTUAL_TRACE();

private:
    explicit SVGFEImageElement(Document&);

    void svgAttributeChanged(const QualifiedName&) override;
    void notifyFinished(Resource*) override;

    PassRefPtrWillBeRawPtr<FilterEffect> build(SVGFilterBuilder*, Filter*) override;

    void clearResourceReferences();
    void fetchImageResource();

    void buildPendingResource() override;
    InsertionNotificationRequest insertedInto(ContainerNode*) override;
    void removedFrom(ContainerNode*) override;

    RefPtrWillBeMember<SVGAnimatedPreserveAspectRatio> m_preserveAspectRatio;

    ResourcePtr<ImageResource> m_cachedImage;
};

} // namespace blink

#endif // SVGFEImageElement_h